//
// Created by liushuai on 2020/3/23.
//

#ifndef TREE_ISVALIDBST_H
#define TREE_ISVALIDBST_H

#include "TreeNode.h"
bool isValidBST(TreeNode* root);
bool isValidBST(TreeNode* root,int* last);
#endif //TREE_ISVALIDBST_H
